Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual Liga Cup que tem um Total de 19 e uma Liga menor que 15?
 ###Tabelas: CREATE TABLE champions_by_country (champions_by_country_id AUTO_INCREMENT PRIMARY KEY, Country VARCHAR, Amateur Era INT, Open Era INT, All-time INT, First title INT, Last title INT) CREATE TABLE instruments_played_by_band_members (instruments_played_by_band_members_id AUTO_INCREMENT PRIMARY KEY, Paul McCartney VARCHAR, Stuart VARCHAR, McIntosh VARCHAR, Whitten VARCHAR, Linda McCartney VARCHAR) CREATE TABLE topscorers_in_order_of_league_goals (topscorers_in_order_of_league_goals_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Club VARCHAR, League INT, FA Cup INT, FA Trophy INT, League Cup INT, Total INT) CREATE TABLE athletics (athletics_id AUTO_INCREMENT PRIMARY KEY, Year INT, Competition VARCHAR, Venue VARCHAR, Position VARCHAR, Event VARCHAR, Notes VARCHAR) CREATE TABLE 2009_results (2009_results_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Starts INT, Cuts made INT, Best finish VARCHAR, Money list rank INT, Earnings ($) INT)  
SELECT AVG League Cup FROM topscorers_in_order_of_league_goals WHERE Total = 19 AND League < 15